Android Open Source - IMFApp Friends Fragment

• Back to Development/tutorial  ↑

From Project

Back to project page IMFApp.

License

The source code is released under:

This is free and unencumbered software released into the public domain. Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a co...

Java Source Code

package com.teamtreehouse.ribbit;
//from w w  w.  j a  va2  s  .  c  o m
import java.util.List;

import android.app.AlertDialog;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;

import com.parse.FindCallback;
import com.parse.ParseException;
import com.parse.ParseQuery;
import com.parse.ParseRelation;
import com.parse.ParseUser;

public class FriendsFragment extends ListFragment {
  public static final String TAG = FriendsFragment.class.getSimpleName();
  
  protected List<ParseUser> mFriends;
  protected ParseRelation<ParseUser> mFriendsRelation;
  protected ParseUser mCurrentUser;
  
  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_friends,
        container, false);
    return rootView;
  }
  
  @Override
  public void onResume() {
    super.onResume();
    
    mCurrentUser = ParseUser.getCurrentUser();
    mFriendsRelation = mCurrentUser.getRelation(ParseConstants.KEY_FRIENDS_REL);

    getActivity().setProgressBarIndeterminate(true);
    
    ParseQuery<ParseUser> query = mFriendsRelation.getQuery();
    query.addAscendingOrder(ParseConstants.KEY_USERNAME);
    query.findInBackground(new FindCallback<ParseUser>() {
      @Override
      public void done(List<ParseUser> friends, ParseException e) {
        getActivity().setProgressBarIndeterminate(false);
        
        if(e == null){
          mFriends = friends;
          
          String[] usernames = new String[mFriends.size()];
          int i = 0;
          for(ParseUser user : mFriends){
            usernames[i] = user.getUsername();
            i++;
          }
          ArrayAdapter<String> adapter = new ArrayAdapter<String>(
              getListView().getContext(), android.R.layout.simple_list_item_1, usernames);
          setListAdapter(adapter);
        }else{
          Log.e(TAG, e.getMessage());
          AlertDialog.Builder builder = new AlertDialog.Builder(getListView().getContext());
          builder.setMessage(R.string.friends_query_error_message)
              .setTitle(R.string.oops)
              .setPositiveButton(android.R.string.ok, null);
          AlertDialog dialog = builder.create();
          dialog.show();
        }
      }
    });
  }
}

Java Source Code List

• Back to Development/tutorial  ↑